Why am I getting so much hate all because my profile pic?

Select the word from the list that best fits the definition a city-state in ethiopia

Which of the following studies is linked most directly to the establishment of the national research act in 1974 and ultimately to the belmont report and federal regulations for human subject protection? a. the public health service tuskegee study of untreated syphilis in the negro male.b. stanford prison experiment (zimbardo).c. tearoom trade study (humphreys).d. the harvard t3 study.

How did geographical features create a civilization in china